Alert archive / Indiana / Tornado Warnings in 2011

Tornado Warning 23, NWS Indianapolis, IN

April 27, 2011Boone County, Hendricks County, Marion County, Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 27, 2011, 7:05 PM EDT for Boone County, Hendricks County, Marion County, Indiana. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 27, 2011, 7:05 PM EDT (23:05 UTC)
Expired
Apr 27, 2011, 7:45 PM EDT
In force
40 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon

Counties Boone County, IN, Hendricks County, IN, Marion County, IN

The radar

The Indianapolis radar (KIND), 23 km from the middle of the area, began a volume at 23:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 27, 7:29 PM EDTFUNNEL CLOUDBrownsburg, INWALL CLOUD AND FUNNEL CLOUD OBSERVED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.1 hours before the alert went out and 194 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2011-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2011-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
791 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

115 
WFUS53 KIND 272305
TORIND
INC011-063-097-272345-
/O.NEW.KIND.TO.W.0023.110427T2305Z-110427T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
705 PM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BOONE COUNTY IN CENTRAL INDIANA...
  NORTHERN HENDRICKS COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN MARION COUNTY IN CENTRAL INDIANA...

* UNTIL 745 PM EDT

* AT 706 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR BROWNSBURG...OR 18 MILES WEST OF
  INDIANAPOLIS...AND MOVING NORTHEAST AT 15 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  LIZTON AROUND 710 PM EDT...
  PITTSBORO...BROWNSBURG AND CLERMONT AROUND 715 PM EDT...
  EAGLE CREEK RESERVOIR AROUND 725 PM EDT...
  WHITESTOWN AND ZIONSVILLE AROUND 745 PM EDT...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 122 AND 138.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 57 AND 71.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3997 8625 3993 8625 3993 8615 3970 8644
      3979 8665 4006 8645
TIME...MOT...LOC 2305Z 212DEG 15KT 3984 8648

$$

77/TDUD
3 follow-up statements
835 
WWUS53 KIND 272322
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
722 PM EDT WED APR 27 2011

INC011-063-097-272345-
/O.CON.KIND.TO.W.0023.000000T0000Z-110427T2345Z/
BOONE-HENDRICKS-MARION-
722 PM EDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN HENDRICKS...
NORTHWESTERN MARION AND SOUTHEASTERN BOONE COUNTIES UNTIL 745 PM
EDT...

AT 718 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR BROWNSBURG...OR 17 MILES NORTHWEST OF
INDIANAPOLIS...MOVING NORTHEAST AT 15 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  WHITESTOWN AND ZIONSVILLE AROUND 745 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3997 8625 3993 8625 3993 8615 3977 8641
      3984 8660 4006 8645
TIME...MOT...LOC 2321Z 212DEG 15KT 3990 8643

$$

77/TDUD
113 
WWUS53 KIND 272335
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
735 PM EDT WED APR 27 2011

INC011-063-097-272345-
/O.CON.KIND.TO.W.0023.000000T0000Z-110427T2345Z/
BOONE-HENDRICKS-MARION-
735 PM EDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN HENDRICKS...
NORTHWESTERN MARION AND SOUTHEASTERN BOONE COUNTIES UNTIL 745 PM
EDT...

AT 736 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 6 MILES WEST OF ZIONSVILLE...OR 18 MILES NORTHWEST
OF INDIANAPOLIS...MOVING NORTHEAST AT 15 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  WHITESTOWN AND ZIONSVILLE AROUND 745 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3997 8625 3993 8625 3993 8615 3977 8641
      3984 8660 4006 8645
TIME...MOT...LOC 2335Z 212DEG 15KT 3995 8639

$$

77/TDUD
074 
WWUS53 KIND 272342
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
742 PM EDT WED APR 27 2011

INC011-063-097-272351-
/O.EXP.KIND.TO.W.0023.000000T0000Z-110427T2345Z/
BOONE-HENDRICKS-MARION-
742 PM EDT WED APR 27 2011

...THE TORNADO WARNING FOR NORTHEASTERN HENDRICKS...NORTHWESTERN
MARION AND SOUTHEASTERN BOONE COUNTIES WILL EXPIRE AT 745 PM EDT/645
PM CDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED. 


LAT...LON 3997 8625 3993 8625 3993 8615 3977 8641
      3984 8660 4006 8645
TIME...MOT...LOC 2341Z 212DEG 15KT 3997 8637

$$

77/TDUD

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 8:26 PM EDTSevere Thunderstorm WarningINDCarroll34 min
Apr 26, 9:21 PM EDTSevere Thunderstorm WarningINDFountain, Montgomery, Parke39 min
Apr 26, 9:34 PM EDTSevere Thunderstorm WarningINDCarroll, Clinton, Howard, Tippecanoe41 min
Apr 26, 11:35 PM EDTFlash Flood WarningINDDaviess, Greene, Knox, Lawrence, Martin, Monroe and 1 more5 hr
Apr 26, 11:42 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Knox, Sullivan24 min
Apr 27, 12:48 AM EDTFlash Flood WarningINDBartholomew, Brown, Decatur, Jackson, Jennings5 hr
Apr 27, 1:10 AM EDTSevere Thunderstorm WarningINDDecatur, Jennings50 min
Apr 27, 2:06 AM EDTSpecial Weather StatementINDClinton, Howard, Tipton39 min
Apr 27, 5:32 AM EDTAreal Flood WarningINDBartholomew, Jackson, Jennings30 hr
Apr 27, 7:04 PM EDTSevere Thunderstorm WarningINDBoone, Hendricks, Marion41 min

Nearby

Tornado Warnings in Indiana, 2011Every tornado warning in 2011Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.